Hi Roger,
thank you for the reply on the side fins. i actually found a set for the 165 last week. it was missing screws and oval washers however. if you look at the back of the side fin, it listed the boards (stamped into the plastic) it was compatible with. the fins i found work on the 03/04 150 and 165. i should have waited for you to reply but i already paid for the fins i found. thanks again,